57445038 has 80 divisors (see below), whose sum is σ = 148452480. Its totient is φ = 16263504.

The previous prime is 57444997. The next prime is 57445039. The reversal of 57445038 is 83054475.

57445038 is a `hidden beast` number, since 574 + 4 + 50 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 57444993 and 57445011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57445039) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 202845 + ... + 203127.

It is an arithmetic number, because the mean of its divisors is an integer number (1855656).

Almost surely, 2^57445038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57445038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74226240).

57445038 is an abundant number, since it is smaller than the sum of its proper divisors (91007442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57445038 is a wasteful number, since it uses less digits than its factorization.

57445038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 474 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 57445038 is about 7579.2504906488. The cubic root of 57445038 is about 385.8491137114.

The spelling of 57445038 in words is "fifty-seven million, four hundred forty-five thousand, thirty-eight".